In which of these areas can software engineers specialize? managing memory
system utilities
managing user programs
system management

System managment would be the answer to your question.

Explanation:

I used it and it worked. Trust Me

only #2 represents an object at rest on a table.

in #1, there is no normal force due to the table; the object is accelerating downward.

in #3, the vertical forces are not balanced; the object is accelerating downward.

in #4, neither the vertical nor the horizontal forces are balanced. the object is accelerating upwards and to the right.